Swipe om te navigeren naar een ander artikel
To assess the validity of the Physical and Mental Component Summary scores (PCS and MCS) of the 12-item Short-Form Health Survey (SF-12), a measure of health-related quality of life (HRQoL), among persons with a history of stroke.
Persons with (n = 2,581) and without (n = 38,066) a reported history of stroke were enrolled in the REasons for Geographic And Racial Differences in Stroke (REGARDS) study. Confirmatory factor analysis methods were used to evaluate the fit of a 2-factor model that underlies the PCS and MCS and to examine the equivalence of the factors across both study groups.
The 2-factor model provided good fit to the data among individuals with and those without a self-reported history of stroke. Item factor loadings were found to be largely invariant across both groups, and correlational analyses confirmed that the two latent factors were highly related to the PCS and MCS scores, calculated by the standard scoring algorithms. The effect of stroke history on physical health was more than twice its effect on mental health.
The psychometric measurement model that underlies the PCS and MCS summary scores is comparable between persons with and without a history of stroke. This suggests that the SF-12 has adequate validity for measuring HRQoL not only in the general population but also in cohorts following stroke.
Log in om toegang te krijgen
Met onderstaand(e) abonnement(en) heeft u direct toegang:
Stewart, A. L., & Ware, J. E. (1992). Measuring functioning and well-being: The medical outcomes study approach. London: Duke University Press.
Anderson, C., Laubscher, S., & Burns, R. (1996). Validation of the short form 36 (SF-36) health survey questionnaire among stroke patients. Stroke, 27, 1812–1816. PubMed
Dorman, P., Dennis, M., & Sandercock, P. (1999). How do the scores on the EuroQol relate to scores on the SF-36 after stroke? Stroke, 30, 2146–2151. PubMed
Hatcher, L. (1994). A step-by-step approach to using the SAS system for factor analysis and structural equation modeling. Cary, NC: SAS Institute, Inc.
Keller, S. D., Ware, J. E., Bentler, P. M., Aaronson, N. K., Alonso, J., Apolone, G., et al. (1998). Use of structural equation modeling to test the construct validity of the SF-36 Health Survey in ten countries: Results from the IQOLA Project. Journal of Clinical Epidemiology, 51, 1179–1188. CrossRefPubMed
Floyd, F. J., & Widaman, K. F. (1995). Factor analysis in the development and refinement of clinical assessment instruments. Psychological Assessment, 7, 286–299. CrossRef
Melchior, L. A., Huba, G. J., Brown, V. B., & Reback, C. J. (1993). A short depression index for women. Educational and Psychological Measurement, 53, 1117–1125. CrossRef
Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16, 297–334. CrossRef
Nunnally, J. C. (1978). Psychometric theory. New York: McGraw-Hill.
Bollen, K. A. (1989). Structural equations with latent variables. New York: Wiley.
Muthén, L. K., Muthén, B. O. (1998–2007). Mplus user’s guide (4th ed.). Los Angeles, CA: Muthen & Muthen.
Kline, R. B. (2005). Principles and practice of structural equation modeling (2nd ed.). New York: Guilford.
Hu, L.-T., & Bentler, P. M. (1999). Cutoff criteria for fit indices in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling, 6, 1–55. CrossRef
Millsap, R. E. (2005). Four unresolved problems in studies of factorial invariance. In A. Maydeu-Olivares & J. J. McArdle (Eds.), Psychometrics: A festschrift to Roderick P McDonald (pp. 153–171). Mahwah, NJ: Erlbaum.
Salyers, M. P., Bosworth, H. B., Swanson, J. W., Lamb-Pagone, J., & Osher, F. C. (2000). Reliability and validity of the SF-12 health survey among people with severe mental illness. Medical Care, 11, 1141–1150. CrossRef
Pickard, A. S., Johnson, J. A., Penn, A., Lau, F., & Noseworthy, T. (1999). Replicability of SF-36 summary scores by the SF-12 in stroke patients. Stroke, 30, 1213–1217. PubMed
Maurischat, C., Herschbach, P., Peters, A., & Bullinger, M. (2008). Factorial validity of the short form 12 (SF-12) in patients with diabetes mellitus. Psychology Science Quarterly, 50, 7–20.
Carod-Artal, J., Egido, J. A., González, J. L., & de Seijas, V. (2000). Quality of life among stroke survivors evaluated 1 year after stroke: Experience of a stroke unit. Stroke, 31, 2995–3000. PubMed
Niemi, M. L., Laaksonen, R., Kotila, M., & Waltimo, O. (1988). Quality of life 4 years after stroke. Stroke, 19, 1101–1107. PubMed
Duncan, P. W., Samsa, G. P., Weinberger, M., Goldstein, L. B., Bonito, A., Witter, D. M., et al. (1997). Health status of individuals with mild stroke. Stroke, 28, 740–745. PubMed
Engstad, T., Bonaa, K. H., & Viitanen, M. (2000). Validity of self-reported stroke: The tromso study. Stroke, 31, 1602–1607. PubMed
- Confirmatory factor analysis of the validity of the SF-12 for persons with and without a history of stroke
Ozioma C. Okonkwo
David L. Roth
- Springer Netherlands